Hi all,

I have a Boston Pro 10" sub. It used to be in a car that is heaps smaller than my new car (Ford Falcon AU). I used to have it in a 14 litre sealed enclosure and it sounded pretty good, but now, in a big sedan, I need more output.

I've heard of other people using Boston Pro subs in a ported box, but I'm not sure if they are really suited to it, or if they even sound good. I'm willing to sacrifice a sound quality for more output, because at the moment, the sub is no-where near powerful enough to match my splits.

I know my other option is to just trade up to a 15" sub, but I don't want to spend anymore money on this (unless someone wants to swap me for a half decent 15" sub? )

So my question is (finally), would someone be able to 1) tell me that the sub can be used in a ported enclosure and 2) if so, then could someone be able to tell me what size enclosure I'd need and the ports etc?

The size of the box isn't too big a deal, but I'd still rather have most of my boot space free.

Here's the sub specs:
Sub: Boston Acoustics Pro 10.5LF 4 ohm sub
Fs: 34 hz
Vas: 35 litres
Qts: 0.53
Qes: 0.57
Qms: 7.8
Cms: 255 um/N
Mms: 86 g
Sd: 315 cm^2
Re: 3.1 ohm
Le: 0.55 mH
Xmax: 8.5 mm (one way)
Max Excursion: 35 mm
Reference Efficiency: 0.25

Thanks in advance

you can get some decent low bass extension with that sub, but at your group delay isn't too pretty when you go ported.
the subs's specs suggest that sealed is the way to go, but ported could be ok,
only way to tell for sure is to experiment, try 50L tuned to 30Hz.

how much power can it handle?

I'd try 35L (1.2 cu/ft) net internal volume tuned to 32hz with a 3" port 12.75" long.. Now that will be hard to fit in such a small box, so you will need to use some bends to fit it in..

(make sure the port mouth firing outside the box is on the same face/plane as the sub and make sure the inside mouth is at least 3" away from any box walls or the sub)

If that isn't enough then you will need to get more power and/or a bigger (in either power handling or cone area..) sub, or possibly a second sub..

Thanks for the quick replies guys, I appreciate it

I'll be feeding the sub 500wrms. It says the recommended amplifier power is 50-1100 watts (whether that's peak or rms I don't know).

I'll give that box size a try anyway.

Thanks again.

Yeah, why not just get more power? 1000watts will go nicely with that sub!

Although they do go loud. Someone with 2x10's of those hits 146 conistintly off only 800wrms in a Civic... 1 cubic foot sealed inclosure too...